拉皮的英文：
skin stretcher

Daily brushing of the skin helps the skin expel toxins.
每天擦洗皮肤有助于皮肤排毒。

(of a place on the skin)with the skin rubbed away and therefore sore
(指皮肤某处)擦掉皮因而疼痛的

Beauty is but skin deep.
美的深度仅在皮肤表面而已。

Beauty is But skin-deep
红颜易变

The skin of his foot are mortifying.
他一只脚上的皮肤正在变成坏疽。